llvm::vputils Namespace Reference

Functions
bool	onlyFirstLaneUsed (VPValue *Def)
	Returns true if only the first lane of Def is used.
VPValue *	getOrCreateVPValueForSCEVExpr (VPlan &Plan, const SCEV *Expr, ScalarEvolution &SE)
	Get or create a VPValue that corresponds to the expansion of Expr.
bool	isUniformAfterVectorization (VPValue *VPV)
	Returns true if VPV is uniform after vectorization.

Function Documentation

getOrCreateVPValueForSCEVExpr()

VPValue * llvm::vputils::getOrCreateVPValueForSCEVExpr	(	VPlan &	Plan,
		const SCEV *	Expr,
		ScalarEvolution &	SE
	)

Get or create a VPValue that corresponds to the expansion of Expr.

If Expr is a SCEVConstant or SCEVUnknown, return a VPValue wrapping the live-in value. Otherwise return a VPExpandSCEVRecipe to expand Expr. If Plan's pre-header already contains a recipe expanding Expr, return it. If not, create a new one.

Definition at line 1251 of file VPlan.cpp.

References llvm::VPlan::addSCEVExpansion(), llvm::VPBasicBlock::appendRecipe(), E, llvm::VPValue::getDefiningRecipe(), llvm::VPlan::getPreheader(), llvm::VPlan::getSCEVExpansion(), llvm::VPlan::getVPValueOrAddLiveIn(), and llvm::VPTransformState::Plan.

Referenced by llvm::VPlan::createInitialVPlan(), createWidenInductionRecipes(), and llvm::VPlanTransforms::VPInstructionsToVPRecipes().

isUniformAfterVectorization()

bool llvm::vputils::isUniformAfterVectorization ( VPValue *  VPV )

inline

Returns true if VPV is uniform after vectorization.

Definition at line 3034 of file VPlan.h.

References llvm::all_of(), assert(), GEP, llvm::VPValue::getDefiningRecipe(), llvm::VPValue::isDefinedOutsideVectorRegions(), and isUniformAfterVectorization().

Referenced by llvm::VPReplicateRecipe::execute(), llvm::VPLiveOut::fixPhi(), llvm::VPTransformState::get(), isUniformAfterVectorization(), and llvm::InnerLoopVectorizer::scalarizeInstruction().

onlyFirstLaneUsed()

bool llvm::vputils::onlyFirstLaneUsed

(

VPValue *

Def

)

Returns true if only the first lane of Def is used.

Definition at line 1246 of file VPlan.cpp.

References llvm::all_of().

Referenced by llvm::VPWidenPointerInductionRecipe::execute(), llvm::VPScalarIVStepsRecipe::execute(), and llvm::VPWidenPointerInductionRecipe::onlyScalarsGenerated().